Given the task definition and input, reply with output. In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

The adjective " Gondwanan " is in common use in biogeography when referring to patterns of distribution of living organisms , typically when the organisms are restricted to two or more of the now-discontinuous regions that were once part of Gondwana , including the Antarctic flora .

It is most commonly used when the organisms only live in two or more of the now-separate regions that were once part of Gondwana , including the Antarctic flora .